Finding the Fourth Proportional to 50,073.74, 69,109.80 and 28,570.49

Step by Step Solution

1. Step 1: Write the proportion equation
   50,073.74 : 69,109.80 = 28,570.49 : x
2. Step 2: Convert to fraction form
   50,073.74/69,109.80 = 28,570.49/x
3. Step 3: Cross multiply
   50,073.74x = 69,109.80 × 28,570.49
4. Step 4: Simplify right side
   50,073.74x = 1,974,500,849.80
5. Step 5: Solve for x
   x = 1,974,500,849.80/50,073.74
6. Step 6: Final answer
   x = 39,431.86